Record Display for the EPA National Library Catalog

RECORD NUMBER: 70 OF 196

Main Title Evaluation of Flame Emission Determination of Phosphorus in Water.
Author Seit, William Rudolf ;
CORP Author National Environmental Research Center, Corvallis, Oreg.
Year Published 1973
Report Number EPA-RAOP-16ADM-31; 660/2-73-007,; 01116
Stock Number PB-225 142
Additional Subjects ( Phosphorus ; Water analysis) ; Flame photometry ; Sulfur ; Water quality ; Water pollution ;
Holdings
Library Call Number Additional Info Location Last
Modified		 Checkout
Status
NTIS  PB-225 142 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 25p
Abstract
A flame spectrometer for phosphorus analysis was evaluated. Response to phosphorus in the form of H3PO4 was linear from 3 micrograms/liter, the detection limit, to 120 mg/liter, the highest concentration tested. Metal ions depress phosphorus emission and must be removed by cation exchange prior to analysis. High concentrations (= or > mg/liter) of sulfur interfere positively. Volatile phosphorus compounds produce a larger signal for a given phosphorus concentration than nonvolatile compounds. River water samples were spiked with inorganic and organic phosphorus and analyzed. The measured phosphorus concentrations were 10-25% lower in river water than in deionized water. (Modified author abstract)